What Allah's right on His slave is?

1-Narrated Mu`adh:

I was a companion rider of the Prophet (ﷺ) on a donkey called 'Ufair. The Prophet (ﷺ) asked, "O Mu`adh! Do you know what Allah's right on His slave is, and what the right of His slaves on Him is?" I replied, "Allah and His Apostle know better." He said, "Allah's right on His slaves is that they should worship Him (Alone) and should not worship any besides Him. And slave's right on Allah is that He should not punish him who worships none besides Him." I said, "O Allah's Messenger (ﷺ)! Should I not inform the people of this good news?" He said, "Do not inform them of it, lest they should depend on it (absolutely).

Sahih al-Bukhari, Book of Fighting for the Cause of Allah (Jihaad), Chapter: To name a horse and a donkey, hadith: 2701

2-It is narrated on the authority of Mu'adh b. Jabal that he observed:

I was riding behind the Messenger of Allah (ﷺ) on an ass known as 'Ufair. He (Mu'adh) observed: He (the Holy Prophet) said: Mu'adh, do you know what right has Allah over His bondsmen and what right have His bondsmen over Him? Mu'adh added: I replied: Allah and his Messenger know best. Upon this he (the Prophet remarked: The right of Allah over His bondsmen is that they should worship Allah and should not associate anything with Him, and the right of His bondsmen over Allah, Glorious and Sublime, is that He does not punish him who associates not anything with Him. He (Mu'adh) added: I said to the Messenger of Allah: Should I then give the tidings to the people? He (the Holy Prophet) said: Do not tell them this good news, for they would trust in it alone.

Sahih Muslim, The Book of Faith, and chapter: 10, hadith: 30

What Allah's right on His slave is?